Islamabad , Pakistan -LRB- CNN -RRB- -- Torrential rains and floods in Pakistan have killed 30 people , and 50 others are missing , a paramilitary official said Friday .

More than 30,000 people have been affected by flooding , mainly in Pakistan 's southwestern Balochistan province , said Murtaza Baid , spokesman for the Frontier Corps . Water swept away four villages and severely damaged others .

Medical camps and shelters have been set up for victims , and 900 troops are helping doctors and emergency teams in rescue efforts .

Flooding has also been reported in southern Punjab province .

Journalist Nasir Habib contributed to this report .

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Torrential rains have flooded parts of southwestern Pakistan

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More than 30,000 people have been affected

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Hundreds of troops are assisting in rescue efforts